Caves · South Wales
Siambri Ddu
Siambri Ddu is a cave in the United Kingdom.
Nick Chipchase — CC BY-SA 2.0 via Wikimedia Commons licence
Plan your visit
- Typical visit
- 45 min–1.5 h
- Nearest railway station
- Whistle Inn halt · 2.6 km
- Free entry
- Dog-friendly
About
Siambri Ddu is a named cave entrance in South Wales. Free to visit. The site is a designated Site of Special Scientific Interest. It sits within the Monmouthshire parliamentary constituency. The nearest railway station is Whistle Inn halt, about 2.6 km away. Postcode area NP4.
Photo gallery
Protected designations
- Site of Special Scientific Interest: River Wye SSSI
Designations sourced from Natural England open data under OGL v3.
Place summary
Siambri Ddu is a cave located in South Wales, within the parish of Llanfoist Fawr, postcode NP4. It is designated as a Site of Special Scientific Interest (SSSI) due to its significance in the River Wye SSSI.
AI-generated from the structured facts on this page (operator, designation, listing, era). Not a substitute for visiting.
- Coordinates
- 51.7973, -3.0879
- District
- Monmouthshire
- Parish
- Llanfoist Fawr
- Postcode
- NP4 9SS
- Parliamentary constituency
- Monmouthshire
- Nearest railway station
- Whistle Inn halt — 2.6 km
Sources
- osm: n336683906 (ODbL)
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Frequently asked questions
- Where is Siambri Ddu?
- Siambri Ddu is in South Wales, United Kingdom (postcode NP4 9SS), in the parish of Llanfoist Fawr.
- Is Siambri Ddu a protected site?
- Yes — Siambri Ddu is part of the River Wye SSSI Site of Special Scientific Interest.
- Is Siambri Ddu free to visit?
- Yes, Siambri Ddu is free to enter.
- How do I get to Siambri Ddu?
- The nearest railway station is Whistle Inn halt, about 2.6 km away. Drivers can navigate to postcode NP4 9SS.